>>6791010As Spanish is my native language, I've never studied it in detail, but I am fairly sure that, unlike English, "tengo" serves both as an indicative of who you are talking to as well as a verb. Therefore you don't need to add a "yo".
Japanese is also like this I believe and it's part of the reason Spanish speakers (usually) have an easier time learning it than English speakers.
And madero/s is a proper word too:
https://es.thefreedictionary.com/madero>>6791017pic related, don't really remember which one first.
